Lewis Lehe was an economics student who decided to use video to explain some economic concepts. These videos were featured on Rustwire here. He is keen on the concept of congestion pricing, and frankly this is one of the clearest ways of explaining the issues around rationing road use by price. I think these are excellent.
Just imagine the difference videos like this would have made with debates on road pricing in the UK, New York and elsewhere. Lewis has exceptional communications talent.